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- Decomposers are associated with which class of food web?
- grazing
- detrital
- inverted
- aquatic
- The producer in an ocean grazing food web is usually a .
- plant
- animal
- fungi
- plankton
- Which term describes the process whereby toxic substances increase along trophic levels of an ecosystem?
- biomassification
- biomagnification
- bioentropy
- heterotrophy
- The majority of the water found on Earth is:
- ice
- water vapor
- fresh water
- salt water
- The process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called .
- dead zoning
- eutrophication
- retrophication
- depletion
- Which of the following biomes is characterized by abundant water resources?
- deserts
- boreal forests
- savanna
- tropical wet forests
- Which of the following biomes is characterized by short growing seasons?
- deserts
- tropical wet forests
- Arctic tundra
- savanna
- Why is the tundra treeless?
- lack of sufficient water
- permanently frozen ground
- winters too harsh
- too many fires
- Where would you expect to find the most photosynthesis in an ocean biome?
- aphotic zone
- abyssal zone
- benthic realm
- intertidal zone
- A key feature of estuaries is
- low light conditions and high productivity
- salt water and fresh water
- frequent algal blooms
- little or no vegetation
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